This knit beanie is comfortable, stylish and warm. It is designed to be worn under a helmet for extended periods of time, and is equally comfortable when worn as a primary head covering. The densely knit, wool blend fabric stretches to fit a wide variety of head shapes, staying put, and minimizing temperature variations. The length is optimized, allowing the fabric to stretch when necessary to cover the ears, without requiring an excessive amount of extra bulk. Black, one size fits most.